<template>
  <div class="search-main">
    <div class="search">
      <input v-model="keyword" type="text" placeholder="输入城市名或拼音" class="search-input">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li
          class="border-bottom search-item"
          v-for="item of list"
          :key="item.id"
          @click="handleCityClick(item.name)"
        >{{item.name}}</li>
        <li class="border-bottom search-item" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
import Bscroll from "better-scroll";
import{mapMutations} from "vuex"
export default {
  name: "CitySearch",
  props: {
    cities: Object
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null
    };
  },
  computed: {
    hasNoData() {
      return !this.list.length;
    }
  },
  methods: {
    handleCityClick(city) {
      // this.$store.commit("changeCity", city);
      this.changeCity(city)
      this.$router.push("/");
    },
    ...mapMutations(['changeCity'])
  },
  watch: {
    // 节流函数
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      // 没有数据时不显示列表
      if (!this.keyword) {
        this.list = [];
        return;
      }
      this.timer = setTimeout(() => {
        const result = [];
        for (let i in this.cities) {
          this.cities[i].forEach(value => {
            if (
              // value.spell.indexOf (this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1
            ) {
              result.push(value);
            }
          });
        }
        this.list = result;
      }, 100);
    }
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.search);
  }
};
</script>

<style lang="stylus" scoped>
@import '../../../assets/styles/varibles.styl';

.search-main {
  font-size: 0.36rem;

  .search {
    font-size: 16px;
    height: 0.72rem;
    padding: 0 0.1rem;
    background-color: $bgColor;

    .search-input {
      box-sizing: border-box;
      width: 100%;
      height: 0.62rem;
      padding: 0 0.1rem;
      line-height: 0.62rem;
      text-align: center;
      border-radius: 0.06rem;
      color: #666;
    }
  }

  .search-content {
    z-index: 1;
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
    background: #eee;

    .search-item {
      line-height: 0.62rem;
      padding-left: 0.2rem;
      background-color: #fff;
      color: #666;
    }
  }
}
</style>


